/* * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.jfr.api.recording.misc; import java.util.HashMap; import java.util.Map; import jdk.jfr.Recording; import jdk.test.lib.Asserts; /* * @test * @summary Verify that each recording get unique a id * @key jfr * @library /test/lib * @run main/othervm jdk.jfr.api.recording.misc.TestGetId */ public class TestGetId { public static void main(String[] args) throws Throwable { Map recordings = new HashMap<>(); final int iterations = 100; for (int i = 0; i < iterations; ++i) { Recording newRecording = new Recording(); System.out.println("created: " + newRecording.getId()); Recording oldRecording = recordings.get(newRecording.getId()); Asserts.assertNull(oldRecording, "Duplicate recording ID: " + newRecording.getId()); recordings.put(newRecording.getId(), newRecording); if (i % 3 == 0) { Recording closeRecording = recordings.remove(recordings.keySet().iterator().next()); Asserts.assertNotNull(closeRecording, "Could not find recording in map. Test error."); closeRecording.close(); System.out.println("closed: " + closeRecording.getId()); } } for (Recording r : recordings.values()) { r.close(); } } }